A visual fool-proofing mechanism

Abstract

This utility model discloses a visual error-proofing mechanism, relating to the field of mold assembly technology. It includes a mold shell and a through hole in the middle of the mold shell for placing an insert. Two protrusions are fixedly connected to the two opposite ends of the insert. The mold shell has two through holes, one and two. The insert has two through holes identical to the first and second through holes, but the diameter of the second through hole is larger than that of the first through hole. Fixing pins adapted to the first and second through holes are inserted into both through holes, and one end of each fixing pin has a switching device. This utility model, by providing a detachable support device at the bottom of the mold shell to fix the insert before installing the fixing pins, and by opening two through holes of different sizes inside the mold shell, and inserting fixing pins of different diameters through the through holes to fix the insert through the mold shell and the insert, prevents the insert from being installed backwards.

Description

Technical Field

[0001] This utility model relates to the field of mold assembly technology, and in particular to a visual error-proofing mechanism. Background Technology

[0002] During the assembly process, inserts need to be added inside the mold shell to form the mold, so that the mold can be processed after forming.

[0003] In the assembly process of existing molds, fixing pins are often used to connect inserts to the mold. The commonly used fixing pins are two fixing pins of the same diameter. The two fixing pins of the same diameter pass through the mold shell and the insert to make the insert fixed in the mold shell. However, during the fixing process, because the difference between the two ends of the insert is very small, the two ends of the insert are often installed backwards, which forces the assembled mold to be disassembled and reworked, resulting in redundancy in the assembly process. In view of this, this utility model introduces a visual error prevention mechanism. Utility Model Content

[0004] The purpose of this invention is to provide a visual error prevention mechanism to solve the problem mentioned in the background art where inserts are installed backwards during assembly with the mold shell, forcing rework.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a visual anti-foolproof mechanism, comprising a mold shell and a through hole in the middle of the mold shell for placing an insert. Two protrusions are fixedly connected to the two diagonal ends of the insert. The mold shell has a first through hole and a second through hole inside. The insert has two through holes identical to the first and second through holes inside, with the diameter of the second through hole being larger than that of the first through hole. Fixing pins adapted to the first and second through holes are inserted into both the first and second through holes. One end of each fixing pin has a switching device, and the other end has a blocking device. A detachable support device is provided at the bottom of the mold shell to support the insert. The support device is detachably connected to the blocking device at one end of the fixing pin. Two slots adapted to the diagonal protrusions of the insert are provided in the inner cavity of the mold shell.

[0006] Preferably, the switching device includes a screw threaded to one end of a fixing pin, a fixing block slidably sleeved on the shank wall of the screw, a washer sleeved on the shank wall between the screw and the fixing block, the friction between the washer and the opposite end of the fixing pin being sufficient to support the weight of the fixing block, and the length of the fixing block being less than the diameter of the fixing pin.

[0007] Preferably, the blocking device includes an abutting circular plate fixed to one end of the fixing pin, and a screw block is fixedly connected to one side of the abutting circular plate.

[0008] Preferably, the support device includes a vertical plate with two irregularly shaped holes inside. The irregularly shaped holes include circular holes with the same diameter as the contacting circular plate. The inner wall of the circular holes has two grooves, and the distance between the two grooves is adapted to the length of the screw block.

[0009] Preferably, a horizontal plate is fixedly connected to the bottom of the vertical plate, two insert plates are fixed to the top surface of the horizontal plate, and two fixing grooves adapted to the insert plates are opened on the side of the mold shell.

[0010] The technical effects and advantages of this utility model are as follows: This utility model provides a detachable support device at the bottom of the mold shell to fix the insert before installing the fixing pin. Secondly, two through holes of different sizes are opened inside the mold shell. By inserting fixing pins of different diameters into the through holes to pass through the mold shell and the insert, the insert can be fixed and thus prevented from being installed backwards. Attached Figure Description

[0011] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0012] Figure 2 This is a schematic diagram of the mold shell structure of this utility model.

[0013] Figure 3 This is a schematic diagram of the supporting device of this utility model. Figure 1 .

[0014] Figure 4 This is a schematic diagram of the supporting device of this utility model. Figure 2 .

[0015] Figure 5 This is a schematic diagram of the fixing pin structure of this utility model.

[0016] Figure 6 for Figure 3 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Mold shell; 11. Perforation 1; 12. Perforation 2; 13. Slot; 14. Fixing slot; 2. Support device; 21. Vertical plate; 22. Horizontal plate; 23. Insert plate; 3. Insert; 4. Fixing pin; 5. Fixing block; 51. Screw; 52. Washer; 6. Irregular hole; 7. Abutting round plate; 71. Tightening block. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] This utility model provides, for example Figure 1-6 The visual anti-foolproof mechanism shown includes a mold shell 1 and a through hole in the middle of the mold shell 1 for placing an insert 3. The two diagonal ends of the insert 3 are fixedly connected to protrusions. The mold shell 1 has a first through hole 11 and a second through hole 12. The insert 3 has two through holes with the same diameter as the first through hole 11 and the second through hole 12. The diameter of the second through hole 12 is larger than that of the first through hole 11. The first through hole 11 and the second through hole 12 are each inserted with a fixing pin 4 that is compatible with the first through hole 11 and the second through hole 12. One end of the fixing pin 4 is provided with a switch device, and the other end of the fixing pin 4 is provided with a blocking device. The bottom of the mold shell 1 is provided with a detachable support device 2 for supporting the insert 3. The support device 2 is detachably connected to the blocking device at one end of the fixing pin 4. The inner cavity of the mold shell 1 has two slots 13 that are compatible with the diagonal protrusions of the insert 3.

[0020] To address the problem of insert 3 being easily installed backwards during assembly with existing molds, this utility model proposes a visual anti-mistake mechanism. This mechanism includes two through holes 11 and 12 of different diameters on the inner wall of the mold shell 1. Each through hole is fitted with a matching fixing pin 4, which passes through the insert 3. If the insert 3 is installed backwards, the fixing pin 4 will not pass through the through hole, thus preventing the insert 3 from being installed backwards. After the fixing pin 4 is installed, the switch device can be turned off and the support device 2 can be removed to fix the fixing pin 4 in the mold shell 1. At the same time, the slot 13 in the inner cavity of the mold shell 1 is adapted to the diagonal protrusion of the insert 3, which facilitates the fixing of the insert 3.

[0021] like Figure 3 and Figure 6 As shown, the switching device includes a screw 51 threadedly connected to one end of a fixing pin 4. A fixing block 5 is slidably sleeved on the shank wall of the screw 51. A washer 52 is provided between the screw 51 and the fixing block 5, which is sleeved on the shank wall of the screw 51. The friction between the washer 52 and the opposite end of the fixing pin 4 is sufficient to support the weight of the fixing block 5, and the length of the fixing block 5 is less than the diameter of the fixing pin 4.

[0022] When installing the fixing pin 4, first move the fixing block 5 so that the bottom end of the fixing block 5 is facing the axis of the fixing pin 4, so that the fixing pin 4 can pass through the hole. After passing through, move the fixing block 5 again so that the bottom end of the fixing block 5 is facing down to fix the fixing pin 4.

[0023] like Figure 5 As shown, the blocking device includes an abutting circular plate 7 fixed to one end of the fixing pin 4. A screw block 71 is fixedly connected to one side of the abutting circular plate 7. The fixing pin 4 can be fixed in the through hole of the mold shell 1 by the cooperation between the abutting circular plate 7 and the fixing block 5.

[0024] like Figure 1 and Figure 4 As shown, the support device 2 includes a vertical plate 21, and two irregular holes 6 are opened inside the vertical plate 21. The irregular holes 6 include circular holes with the same diameter as the contact circular plate 7. Two grooves are opened on the inner wall of the circular holes, and the distance between the two grooves is adapted to the length of the screw block 71.

[0025] Before installing the insert 3, first fix the support device 2 to the bottom of the mold shell 1. Then insert the insert 3 into the mold shell 1. The main function of the support device 2 is to support the insert 3 and prevent the insert 3 from slipping out of the hole in the mold shell 1 before the fixing pin 4 is installed. After being supported, the insert 3 is easier to install the fixing pin 4. It is worth noting that when removing the support device 2, the screw block 71 needs to be aligned with the irregular hole 6 before the support device 2 can be removed.

[0026] like Figure 2 and Figure 3 As shown, a horizontal plate 22 is fixedly connected to the bottom of the vertical plate 21, and two insert plates 23 are fixed to the top surface of the horizontal plate 22. Two fixing grooves 14 adapted to the insert plates 23 are opened on the side of the mold shell 1.

[0027] The support device 2 is fixed by inserting the insert plate 23 of the horizontal plate 22 into the fixing groove 14. After the fixing pin 4 is installed, the support device 2 can be removed.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A visual foolproofing mechanism, comprising a mold shell (1) and a through-hole in the middle of the mold shell (1) for placing an insert (3), two opposite corners of the insert (3) being fixedly connected with protrusions, characterized in that: The mold shell (1) has a through hole 1 (11) and a through hole 2 (12) inside. The insert (3) has two through holes with the same diameter as the through hole 1 (11) and the through hole 2 (12) inside. The diameter of the through hole 2 (12) is larger than that of the through hole 1 (11). The through holes 1 (11) and the through hole 2 (12) are each fitted with a fixing pin (4). One end of the fixing pin (4) is equipped with a switch device, and the other end of the fixing pin (4) is equipped with a blocking device. The bottom of the mold shell (1) is equipped with a detachable support device (2). The support device (2) is used to support the insert (3). The support device (2) is detachably connected to the blocking device at one end of the fixing pin (4). The inner cavity of the mold shell (1) has two slots (13) that are adapted to the diagonal protrusions of the insert (3).

2. A visual fool-proofing mechanism according to claim 1, characterized in that: The switching device includes a screw (51) threaded to one end of a fixing pin (4). A fixing block (5) is slidably sleeved on the shank wall of the screw (51). A washer (52) is provided between the screw (51) and the fixing block (5) and sleeved on the shank wall of the screw (51). The friction between the washer (52) and the opposite end of the fixing pin (4) is sufficient to support the weight of the fixing block (5), and the length of the fixing block (5) is less than the diameter of the fixing pin (4).

3. The visual error-proofing mechanism according to claim 1, characterized in that: The blocking device includes an abutting circular plate (7) fixed to one end of the fixing pin (4), and a screw block (71) is fixedly connected to one side of the abutting circular plate (7).

4. The visual error-proofing mechanism according to claim 1, characterized in that: The support device (2) includes a vertical plate (21), and the interior of the vertical plate (21) has two irregular holes (6). The irregular holes (6) include circular holes with the same diameter as the contact circular plate (7). The inner wall of the circular holes has two grooves, and the distance between the two grooves is adapted to the length of the screw block (71).

5. A visual foolproofing mechanism according to claim 4, characterized in that: The bottom of the vertical plate (21) is fixedly connected to a horizontal plate (22), and two insert plates (23) are fixed on the top surface of the horizontal plate (22). The side of the mold shell (1) has two fixing grooves (14) that are adapted to the insert plates (23).

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